fahrenheit thermometer circuit

Posted on Feb 6, 2014

This is a design for thermometer. This is a simple circuit design. This circuit is based on temperature sensor using LM35 Ic. If you have a digital voltmeter, or any voltmeter with millivolt resolution and high input impedance, then you can use this temperature-to-voltage adapter circuit to measure room temperature. This is the figure of the circu

fahrenheit thermometer circuit
Click here to download the full size of the above Circuit.

it. Note that the voltage output of this circuit is floating, not referenced to ground. You have to use separate supply if your voltmeter has single ended (referenced to ground) input. Differential input adapter described here is suitable to give a differential input for your single ended meter, remember that the input impedance must be high. You can set your voltmeter to 200 mV range to give temperature reading directly in Fahrenheit degree.

Leave Comment

characters left:

New Circuits



Popular Circuits

Auto light controller
Fet Microphone Mixer Circuit
How to Make a Simple Reverse Forward LED Light Chaser Circuit Using IC 4017
transformer Single pole AC to DC conversion circuit
DIY Li ion battery charger w adjustable shut off current
Transistor Circuit Analysis
6 x 6 Loop Antenna
Electronic Siren
Transistor Circuits
One way to prevent reverse polarity of the DC power supply circuit